This is old news, from January, but there has been a D700 firmware update. V1.01 (of boththe a and b portions) of the firmware are available from http://nikoneurope-en.custhelp.com/app/answers/detail/a_id/26608
The issues fixed are very very minor, things that I had never noticed. If you are into long exposure shots and make use of Long exp. NR, then it might be an upgrade that you are particularly interested in:
An issue that, in extremely rare cases, resulted in noticeable black dots in images captured with Long exp. NR in the shooting menu set to On has been resolved.
Some SB800 and Battery Pack MB-D10 issues have also been fixed.
